Fanlike collar



March 9, 1954 w MITCHELL 2,671,261

FANLIKE COLLAR Filed Feb. 27, 1953 Will/am E. Mitchell INVENTOR.

9 BY @Mm Patented Mar. 9, 1954 UNITED STATES PATENT OFFICE FANLIKE COLLAR William E. Mitchell, Altoona, Pa.

Application February 27, 1953, Serial No. 339,385

7 Claims;

This invention relates to a fan-like collar .and particularly to a substantially flexible base fanlike collar for closing an annular opening.

In the construction of catch basins, end walls and the like it is customary to provide a mold form and to provide an aperture in the side of of the form to which a drain pipe or other pipe may be inserted as may be desired for communication With the interior of a finished product. Heretofore it has been customary to provide a relatively large aperture in the side of the mold and to provide a plurality of mold pieces of different shapes having slidable portions mounted thereon so that the drain pipe may be inserted through the large aperture and various portions adjusted to close the annular aperture around the drain pipe. This has resulted in the necessity of carrying a large number of parts and having a material number of adjustments to make in order to properly close the opening around a drain pipe.

The present invention provides a fan-like collar or closure for adjusting about the drain pipe and having articulated angle like members arranged thereon for closing the apertures and means for connecting the collar to the side of the mold form.

The closure according to the invention comprises a substantially elongated flexible belt like base body having a plurality of articulated segments thereon in the form of overlapping angle plates and clamping means for securing the overlapping plates to the side of a mold form. The angle plates are being detachably mounted on the base member so that any desired number of angle plates may be utilized depending upon the size of the pipe encircled. The apertures for mounting the angle plates serving to receive a detachable fastener such as a screw fastener or even a wire wrapping to mount the body base in firm relation about the pipe or other conduit.

It is accordingly an object of the invention .to provide an improved closure.

It is a further object of the invention to provide a readily adjustable closure.

It is a further object of the invention to provide a fan-like closure for securing an annular opening.

It is a further object of the invention to provide a readily adjustable closure for an annular open- Other objects and many of the attendant advantages of the present invention will be apparent from the following detailed description taken in connection with the accompanying drawings in which:

Figure 1 is an elevational view of the fan-like collar in position;

Figure 2 is anenlargecl section of the fan-collar in uncoupled condition;

Figure 3 is a cross section through the collar taken substantially on the plane indicated by the line 3-3 of Figure 2; and,

Figure 4 is a perspective view of one of the angle plates.

A mold form 10 is provided with a largecircular aperture l2 through which a drain pipe of any desired size such as M may be introduced.

A closure for the annular opening I2 comprises an elongated flexible body l5 which may be'constructed of any suitable material but is preferably rubberized fabric. Articulated clcsing memhere are connected to the base- H5 in contiguous relation around the length thereof andeach of the articulated members consists of an angle like body or angle plate having, a first side '20 provided with an aperture 22 through which a'separable fastener such as'the screw threaded fastener 24 may extend. A second side of the angle plate consists of an upstanding side 26 which has cutwardly diverging sides 28 and 30 so that the angle plate side 26 increases-constantly in width from the angle side 29 to the outer extremity thereof. Alternate sides 20 of the angle plates are mounted in spaced relation to the base 5 by any suitable spacer means such as a flexible washer 32. Also, the alternate sides 26 are arranged in staggered or offsetrelation with respect to eachother so that the alternate upstanding sides 26 will extend in spaced overlapped relation to each other with the extent of the overlap being determined by the curvature of the base It. The offsetting of the upstanding sides 26 and the alternate elevation of the sides 20 produce a readily articulated member which may be flexed as desired with the members overlapping to accommodate the flexing. The fanlike closure member may be attached to the mold wall I6 by any suitable means herein shown as bold downs or clamps sshereinshown as relatively large washers but which may be clamping bars or clamping plates as may be desired. The hold down members 3'6'are connected to the'mold form It] by any suitable means such as separable fasteners 38.

In the operation of the fan-like collar a plurality of the plates are applied to the body l6 by the separable fasteners 24 but there will be a sufficient of the angle plates so that the portion 20 will form a substantially continuous annular ring about the member M. Upstanding ends 40 and 42 of the body l6 will be arranged in parallel relation and secured together by any suitable means herein illustrated as a wire wrapping 44. Obviously any suitable fastener may be utilized. The securing of the body l6 about the member M will cause the sides 20 to be disposed in substantially tangential relation to the conduit I4 with the upstanding members 26 overlapping more or less depending upon the diameter of the member Id. The articulated collar will be firmly pressed against the face of the mold Ill and the hold down members 36 will be applied thereto after which the threaded fasteners 38 will be firmly secured to hold the hold downs firmly against the surface of the fan-like collar so that the annular passage 12 will be completely and solidly closed. After the concrete member has been cast in the form I and allowed to set the collar may be readily removed by removing the threaded fasteners 38 and opening the fastener 44 after which the collar may be transferred to some other position and angle members either applied or removed as may be desired to fit the various tubular conduits to which it may be applied.

For purpose of exemplification a simplified embodiment of the invention has been shown and described according to the best present understanding thereof. However, it will be apparent to those skilled in the art that many changes and modifications may be made in the construction and arrangement of the parts thereof without departing from the true spirit and purpose of the invention.

Having described the invention what is claimed as new is as follows:

1. For use with a mold form having a pipe receiving aperture therein, a fan collar for sealing the aperture about a pipe comprising a flexible base member adapted to be secured about a pipe, a plurality of contiguous angle plates fixed to said base, one angle of said angle plates being in upstanding relation to said base member, the sides of said upstanding angle plate being progressively wider as the distance from the base increases.

2. For use with a mold form having a pipe receiving aperture therein, a fan collar for sealing the aperture about a pipe comprising a flexible base member adapted to be secured about a pipe, a plurality of contiguous angle plates fixed to said base, one angle of said angle plates being in upstanding relation to said base member, the sides 'of said upstanding angle plate being progressively wider as the distance from the base increases, alternate angle plates being offset whereby said upstanding angle plates are in overlapping relation.

3. An annular closure member comprising an elongated flexible base member, a plurality of angle plates mounted on said base in contiguous relation, one side of each of said angle members extending substantially perpendicular to said base, said one side of said angle members increasing in width from the base outwardly, alternate angle plates being offset whereby said perpendicular sides are in overlapping relation.

4. An annular closure member comprising an elongated flexible base member, a plurality of angle plates mounted on said base in contiguous relation, one side of each of said angle members extending substantially perpendicular to said base, said one side of said angle members increasing in width from the base outwardly, alternate angle plates being offset whereby said perpendicular sides are in overlapping relation, a spacing member interposed between alternate angle plates and said base.

5. A fan-like closure for an annular opening comprising an elongated flexible base member, a plurality of angle plates mounted in contiguous association thereon, each of said angle plates including a side adapted for mounting adjacent to said base, an upstanding side, a separable fastener for each of said angle plates, said separable fasteners detachably mounting the several angle plates on said base, the upstanding sides of said angle plates extending in a plane substantially parallel to the longitudinal dimension of said base, each of the upstanding sides of said angle plates being of progressively increasing width outward from said base.

6. A fan-like closure for an annular opening comprising an elongated flexible base member, a plurality of angle plates mounted in contiguous association thereon, each of said angle plates including a side adapted for mounting adjacent to said base, an upstanding side, a separable fastener for each of said angle plates, said separable fasteners detachably mounting the several angle plates on said base, the upstanding sides of said angle plates extending in a plane substantially parallel to the longitudinal dimension of said base, each of the upstanding sides of said an le plates being of progressively increasing width outward from said base, spacing members secured between alternate angle plates and the base, said alternate angle plates being later laterally staggered whereby said upstanding sides are in overlapping relation.

7. For use with a mold form having a pipe receiving aperture therein, a fan collar for sealing the aperture about a pipe comprising a flexible base member adapted to be secured about a pipe, a plurality of contiguous angle plates fixed to said base, one angle of said angle plates being in upstanding relation to said base member, the sides of said upstanding angle plate being progressively wider as the distance from the base in creases, alternate angle plates being offset whereby said upstanding angle plates are in overlapping relation, holding clamps engaging said angle plates, threaded fasteners attaching said clamps to said form.

WILLIAM E. MITCHELL.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 578,422 Richardson Mar. 9, 1897 1,284,534 Wyatt Nov. 12, 1918 1,352,571 Wyatt Sept. 14, 1920 

